//
// "$Id: Fl_Multi_Label.cxx 8864 2011-07-19 04:49:30Z greg.ercolano $"
//
// Multi-label widget for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2010 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file.  If this
// file is missing or damaged, see the license at:
//
//     http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
//     http://www.fltk.org/str.php
//

// Allows two labels to be used on a widget (by having one of them
// be one of these it allows an infinte number!)

#include "Fl.H"
#include "Fl_Widget.H"
#include "Fl_Menu_Item.H"
#include "Fl_Multi_Label.H"

static void multi_labeltype(
        const Fl_Label* o, int x, int y, int w, int h, Fl_Align a)
{
	Fl_Multi_Label* b = (Fl_Multi_Label*)(o->value);
	Fl_Label local = *o;
	local.value = b->labela;
	local.type = b->typea;
	int W = w;
	int H = h;
	local.measure(W, H);
	local.draw(x,y,w,h,a);
	if (a & FL_ALIGN_BOTTOM) h -= H;
	else if (a & FL_ALIGN_TOP) {
		y += H;
		h -= H;
	} else if (a & FL_ALIGN_RIGHT) w -= W;
	else if (a & FL_ALIGN_LEFT) {
		x += W;
		w -= W;
	} else {
		int d = (h+H)/2;
		y += d;
		h -= d;
	}
	local.value = b->labelb;
	local.type = b->typeb;
	local.draw(x,y,w,h,a);
}

// measurement is only correct for left-to-right appending...
static void multi_measure(const Fl_Label* o, int& w, int& h)
{
	Fl_Multi_Label* b = (Fl_Multi_Label*)(o->value);
	Fl_Label local = *o;
	local.value = b->labela;
	local.type = b->typea;
	local.measure(w,h);
	local.value = b->labelb;
	local.type = b->typeb;
	int W = 0;
	int H = 0;
	local.measure(W,H);
	w += W;
	if (H>h) h = H;
}

void Fl_Multi_Label::label(Fl_Widget* o)
{
	Fl::set_labeltype(_FL_MULTI_LABEL, multi_labeltype, multi_measure);
	o->label(_FL_MULTI_LABEL, (const char*)this);
}

void Fl_Multi_Label::label(Fl_Menu_Item* o)
{
	Fl::set_labeltype(_FL_MULTI_LABEL, multi_labeltype, multi_measure);
	o->label(_FL_MULTI_LABEL, (const char*)this);
}

//
// End of "$Id: Fl_Multi_Label.cxx 8864 2011-07-19 04:49:30Z greg.ercolano $".
//
